You will never see a regular season NHL game go longer than 3 hours. Most of the time you are looking at two and a half hours, but some games go really quickly and can be over in about 2 hours. So, 2-3 hours, but most often an NHL game is 2.5 hours.
An actor (actress is sometimes used for females; see Â§ Terminology) is a person portraying a character in a dramatic or comic production; he or she performs in film, television, theatre, radio, commercials or music videos.
Elements of use case diagram: Actor. â¢ Actor is someone interacting with use case. (system function). Named by noun. â¢ Similar to the concept of user, but. a user can play different roles; (example: a prof. can be instructor and. researcher â plays 2 roles with two systems). â¢ Actor triggers use case. â¢ Actor has responsibility toward the system (inputs), and Actor have expectations from the system (outputs).